Finding the Fourth Proportional to 230,551.62, 318,113.11 and 139,955.28
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Solution
The fourth proportional to 230,551.62, 318,113.11 and 139,955.28 is: 193,109.07
Step by Step Solution
- Step 1: Write the proportion equation
230,551.62 : 318,113.11 = 139,955.28 : x - Step 2: Convert to fraction form
230,551.62/318,113.11 = 139,955.28/x - Step 3: Cross multiply
230,551.62x = 318,113.11 × 139,955.28 - Step 4: Simplify right side
230,551.62x = 44,521,609,381.72 - Step 5: Solve for x
x = 44,521,609,381.72/230,551.62 - Step 6: Final answer
x = 193,109.07
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.